﻿/*
 * Copyright (c) 2023 Proton AG
 *
 * This file is part of ProtonVPN.
 *
 * ProtonVPN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ProtonVPN is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ProtonVPN.  If not, see <https://www.gnu.org/licenses/>.
 */

using System;
using System.Collections.Generic;
using DnsClient;
using ProtonVPN.Dns.NameServers;

namespace ProtonVPN.Dns.Tests.Mocks
{
    public class MockOfNameServersResolver : INameServersResolver
    {
        private readonly Func<IReadOnlyCollection<NameServer>> _expectedNameServersFunc;

        public MockOfNameServersResolver(IReadOnlyCollection<NameServer> expectedNameServers)
        {
            _expectedNameServersFunc = () => expectedNameServers;
        }

        public MockOfNameServersResolver(Exception exception)
        {
            _expectedNameServersFunc = () => throw exception;
        }
        
        public IReadOnlyCollection<NameServer> Resolve()
        {
            return _expectedNameServersFunc();
        }
    }
}